Sprayer



F. A. CUFF Jan. 6, 1931.

SPRAYER Filed Feb. 28, 1927 2 Sheets-Sheet l [7z V6 71102 FEED ,4. Cu F Jan. 6, 1931. F. A. CUFF 1,738,188

SPRAYER Filed Feb. 28. 1927 2 Sheets-Sheet 2 FEED ,4. Cur-F PatentedJan. 6, 1931 FRED Ad Curr, or MINnEAPoLIsMINNEsoTA, 'ASSIGNORTO HUDSON MANUFACTURING 7 r 00., ormmnnnroms, MINNESOTA, A CORPORATION or 'lvrmnnsorn 5 steam Application filed February '28, 192 7.u Seria1 171,538

Objects of-the invention are to-provide an improvedconstruction in which the liquid delivery tube is disposed wholly within the tank and pump cylinder; to provide an arrangement in which'the intake end of'said supply pipe is so disposed within the supply tank that it' will bebelow thelevel of the tank liquid under all ordinary operating conditions to. provide a drain'pocket arranged to catchthe drippingsfrom fthe spray orifice; and to provide such arrangements of-the oil supply pipe in relation to the spray orifice as v will improve atomization 1 Features of. the inventlon relate to all the details-of construction,including the manner of socketing the deliveryend of thefcylinder within the tank, theemannervof pro'viding a.

pocket for catching the drippings ;ftheinan-' ner of forming the spray orifice and thei'ar rangement of the oil tube in relation 'to said orifice a Advantages of the device are set forthin the description of thedra'wingsf forming a part of this application and in saiddra'wings. Figure 1 is a sectional elevation showing the tank in 'cross section' with 1 thei lc'ylinder broken away at its discharge end;

a Figure 2 is an end view of another form of the sprayer, incorporating a drip groove looking towards the" spray orifice;

Figure 3 is a view simllar to Figure :2 sho'w ing a modified construction of the; pocket 1 for; catching the drippings' from the orifice;

Figure 4 is a 'plan view further illustrating the pocket formation; i l w Figure 5 is a transverse'section through the tank showing the relation of the pocket'tothe 7' I 5 mg, and thence returned to the tank. I

" Figures 8, 4; and 5 illustrate a modification delivery-end wall of'the cylinder; 1 1 Y Figure '6 is a sectionfiillustrating a'modi Figure 9 is anend view'of another modi fied construction of the diSchaTgeorifice' -in;

which the delivery end of the oil tube is centered within the opening by prongs struck out from the cylinder end wall; and

Figure 10 is an end viewshowing a further modification somewhat similar tothat illustrated; in Figures 7 and 8 but showing a different arrangement of the spray openlngs.

' The atomizing hand sprayer shown herein comprises a supply tank l', a pump associated withthe tank including a cylinder 2, having a discharge orifice 3 in that end wall adjacent the tank, said cylinderbeing socketed in and connected with .the tank in a novel manner hereinafter tohe'described. The cylink der piston is indicated at 8, the pistonrod at r 9 and any suitable handle at 10. The pump itself may be of any preferred design. 7

Inthe forms shown in Figures 1 and 2 the end portion of the-pump cylinder issocketed in'the tank, and formsa sealedv connection.

For this. purpose an opening is provided in the tank of the proper contour, and in this opening the discharge end of. the cylinder is sealinglyffitterhso that its discharge end wallmeets the tank. In this form of the device the pocket is formed by means of'an element; 15 or sheet metal, bent substantially as shownand having its ends 16 secured as by solderingto the outer side of the end wall of the cylinden while its outer edges 17 are,

similarly secured to the tanln The, element forms a brace, and connector, which not only forms a pocketbut decidedly strengthens the structure. At the junction of the outermost wall of this element with the tank is provided an indrain opening 20 leadinglto the V interior of the tank. I

By this arrangement the'drippings are i i caught and directed towardsthe drain openinwhich the delivery end of the cylinder isfl also .socketed within thev t-ank,.but in this in-' stance after forming the opening in thetank,

the same and having an end wall sealingly engaging the lip, said wall having a discharge orifice arranged oversaid drain pocket. p 3. A device of the'class described comprising a supply tank having an opening and a marginal lip for the openings pressed intioned with respect to the orifice within the,

cylinder to obtain suction effects in the tube when air is passed outwardly through the orifice. p

4. A device of the class described comprising a supply tank, and a pump including'a cylinder'secured uponthe tank, said cylinder having'an end wall meeting the tankand said end wall having a discharge orifice, said tank having a pocket slanting toward the meeting line of. the cylinder and tank walls, an opening leading from said pocket to thetank and arranged at that portion nearest the meeting line, the wall of said cylinder being formed channel leading toward said to. provide a orifice. I I

5. A supply tank, a pump including a cylinder securedto the tank, and a, piston for said cylinder, said cylinder having an end wall the faceof which is substantially perpendicular to the long axis of the cylinder and having an orifice, and a tube leading from the tank through the cylinder wall at a point immediately adjacent and having its delivery end associated with the orifice to obtain suction effects in the tube when air is forced through the orifice, the upstanding portion of the tube which lies within the cylinder be- 'ing substantially parallel with the face of the end wall and immediately adjacent the wall, to allow amaximum forward discharge stroke of the piston. I

6. A device of the class described including a supply tank having a cylindrical wall and a pump including a cylinder secured upon the tank, said cylinder having an end wallhaving a discharge orifice, the cylindrical wall of said tank [having an inwardly pressed portion forming a pocket arranged to receive drippings from the orifice.

device of the class described comprising a supply tank, a pumpiincludinga cylinder secured to the tank, said cylinder having an end wall havinga discharge opening the "margins of .which. are shaped to center a supply tube, and a supply tube within the cylinder and tank having its discharge;

end centered in said discharge opening.

- 8., A device of theclass described come i prising a supply tank, and a pump including 1 a cylinder secured upon the tank, said cylinder having an end wall meeting the tank and cylindrical wall, said tube being wholly :hand this24th d said end wall havinga discharge orifice, said tank.

- 9; Ina sprayer of the suction type com-1' prising a supplytank having an opening, a

pump including a cylinder capping the opening and secured to the tank, said cylinder having an end wall having a discharge orifice, a supply tube passing from the tankthrough that portion of the cylindrical wall of the pump which caps the tank opening, means sealingly securing the tube to the within tank and cylinder, and having a discharge end centered in the discharge orifice of the end wall of the cylinder in a manner to' obtainatomization of oil and mixing therewith of air forced through the cylinder out'of the orifice. 7

10. In a sprayer of the suction type comprising a supply tank, a pump including a cylinder secured to the tank, said cylinder having an, end wall; having a discharge orifice, a supply tube lying wholly within the cylinder and tank, means sealingly securing the tube in operative position at the lower portion of the cylindrical-wall of the pump, I

said means forming the sole fastening means for the tube, and the end of thetube being adapted to deliver through the orifice.

11. A-device of the class described comprising a supply tank,'a pump including a cylinder securedto the tank, said cylinder having an end wallpunched inwardly and then outwardlyto form a nozzle, said punched-in portion having openings having their axes directed outwardly toward the nozzle axis, and a supply tube within the cylinder and tank havingoits discharge end centered in said nozzle and spaced to provide for the projection of air through the nozzle and around'said tube. k

12. A device of the class described comcylinder securedto the tank, said cylinder having an end wall having a discharge open- A ing therein and having additional openings 1 surrounding the discharge opening, and having their axes directed toward the" axis of said discharge opening, and a supply tube within the cylinder and tank having its discharge end associated with said discharge opening to provide for the projection of air through said opening and around said tube. In witness whereof, I have hereunto set my yof 'February, 1927.3

: I 'FRED'A'. CUFF. 

